Designation:C1412–99StandardPracticeforMicrowaveOvenDissolutionofGlassContainingRadioactiveandMixedWastes1ThisstandardisissuedunderthefixeddesignationC1412;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(e)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thispracticedescribesamicrowaveovenpracticeusedtodissolveglasssamplesthatmaycontainnuclearwastes.Theresultingsolutionsarethenusedtodeterminemetalsandradionuclidesinsupportofglassvitrificationplantoperationsandmaterialsdevelopmentprograms.Thispracticecanbeusedtodissolveproductionglasssamples,vitrifiedmelterfeeds,andsludges.1.2ThispracticeisintroducedtoprovidetheuserwithanalternativemeanstoTestMethodsC169fordissolutionofwastecontainingglassinshieldedfacilities.TestMethodsC169isnotpracticalforuseinsuchfacilitiesandwithradioactivematerials.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:C169TestMethodsforChemicalAnalysisofSoda-LimeandBorosilicateGlass2C1109TestMethodforAnalysisofAqueousLeachatesfromNuclearWasteMaterialsUsingInductivelyCoupledPlasma—AtomicEmissionSpectrometry3C1111TestMethodforDeterminingElementsinWasteStreamsbyInductivelyCoupledPlasma—AtomicEmis-sionSpectroscopy3C1285TestMethodsforDeterminingChemicalDurabilityofNuclearWasteGlasses:TheProductConsistencyTest(PCT)3C1317PracticeforDissolutionofSilicateorAcid–Resis-tantMatrixSamples3C1342PracticeforFluxFusionSampleDissolution33.Terminology3.1Definitions:3.1.1productconsistencytest(PCT)—aseriesoftestmeth-odsasdefinedinTestMethodsC1285thatevaluatethechemicaldurabilityofhomogenousanddevitrifiedglassesbymeasuringtheconcentrationsofchemicalspeciesreleasedfromacrus...
